Fire-escape ladder



(No M'odgl.)

F, O. RBISBNER.v PIRE BSGAPBLADDBR.

No. 303,884. Patented Aug. 19, 1884.

INVENTOR panying drawings.

lJNiTnn STnTns PATHNT @Tries FRlEDERlGH O. REISENER, OF TEST POlN'l, lOlVA.

FIRE-ESCAPE LADDER.

SPECIFICATION forming part of Letters Patent No. 303,88-, dated August 13 1884,

(No model.)

fo @ZZ whom, it may concern.:

Be it known that I, Fainnnaion O. Enrsn* NER, a citizen of the United States, :residing at lVest Point, in the county of Lee and State of Iowa, have invented a new and useful Fire- Escape Ladder, of which the following is a specification,reference being had tothe accom- My invention relates to lire-escape ladders; and it has for its object to provide a device of this character which may .be readily folded to occupya minimum amount of space.

A. further object of the inventionl is to pro vide a ladder which shall be cheap and simple in its construction and effectivein its use.

The invention consists in forming the sides oil each section composing the ladder alter-v nately convex and concave.

Theinvention further consists in the improved construct-ion and combinations of parts hereinafter fully described, and pointed out in the claims.

ln the drawings, Figure lis afront elevation ofmy improved ladder applied. Fig. 2 is a perspectivc view of the same folded. Fig. 3 is a perspective view of a portion of the ladder, showing the attaching means and the curved sides 5 and Fig. at is a detail view of modified `lorm of fastening for securing the upper or top end of the ladder within the room where it is designed to be used.

ln the accompanying drawings,in which like letters refer the corresponding parts in the several iigures, A represents the ladder, which is provided at its upper end with a sufficientlength of chain, B, in order that the top round of the ladder, when in use,will fall in its proper place on the outside ofthe window. rlhe chain ll, which is secured to the upper ends of the sides of the ladder A., is secured to the door or other part of the room by means of looped plates C, having openings for the passage of screws for their attachment; thoughit will be seen that there are various ways in which the ladder may be secured. The ladder A consists of a series of sections, D, as before mentioned, the sides and rounds of which decrease in length and width, respectively, as they near the bottom of the ladder. The sides (t of this ladder are made curved, the sides of l one section being convex and the sides of the adjacent section concave, so that the ladder, when suspended, may be said to approach a serpentine form, as is clearly shown. The rounds are secured in openings of the sides, and betweenthe outer side of one section and the inner side of the adjacent is provided a tube or bushing, b, in order to keep the sections properly separated and allow of their ready working.'

The ladder, as above described, is adapted to be folded one section within the other, and, as will be readily seen, occupies but a small amount of space.

It will be seen that by forming the sides of the ladder alternately concave and convex, the liability of the rounds to lie close to the walls so that nothing more than the tip of the 'loot can be easily set upon them is prevented.

` In Fig. 4l I have shown a modified form of fastening for securing the ladder to a building. This form is preferably employed when it is desired to have the escape-laddcr portable, the saine being constructed as iollows: E represents a bracket approximating a U shape, and provided at one ofits extremities with an opening for its attachment to the upper end oi' the ladder. At the opposite end or extremity is pivoted a hook, d, which is provided upon its inner side with a series of teeth, c. The other end of this pivotcd hook extends a slight distance beyond the side'of the end of the bracket to which it is pivoted, and is adapted to be engaged byapivoted pawl, d', by which means it is held rigid upon the said bracket against upward movement. In use,two ofthese brackets are employed, and they are suspended by means of he pivoted hooks to the windowsill or oth r suitable place, the pivotcd pawl engaging theteetlrpivotcd hook, thus preventing its disengagement from the object to which it is attached.

It will be seen that the improved ladder and the means for attaching the same are simple, readily applied, and that it a lTords ready means for the purpose for which it is designed. lt will also be seen that by forming the sections of the ladder as described, the same is made to occupy but a small amont oi" space.

Having fully described. my invention, what ing provided at. its opposite end with a piv- 15 oted hook` provided on its inner side with teeth, and having its lower end extending beyond the side of the endto which it is pivoted,

and a pivoted pawl to engage the end of said hook, substantially as set forth.

In testimony thatI claim the foregoing as my own I have hereto a'fiixed my signaturel in presence of two witnesses.

FRIEDERIGH OTTO REISENER.

Witnesses:

CHARLES MARTIN,

GEORGE SEIM. 

